Drunvalo Melchizedek is a veitnam vet, physcist, author and spiritual teacher, who lives in Sedona, Arizona. He has written four books:

* Ancient secrets of the flower of life Volume I,

* Ancient secrets of the flower of life Volume II,

* Living in the heart,

* Serpent of Light - Beyond 2012,

Aspects of Drunvalo's work can be referenced and have a long verifiable histories, such as: * The flower of life which is a geometrical figure said to contain ancient, religious value depicting the fundamental forms of space and time. It is a form of Sacred Geometry which has been used in many civilisations in many periods around the world. * Merkaba meditation which is a form of meditation taught by Drunvalo, which shares common ground with the Hebrew concept of Merkabah, which means "the Throne-Chariot of God".

His work though extends into areas beyond the experience of most of the population, which may require suspension of judgment until the reader has sought to test what Drunvalo teaches through practice in their own life. For example: * While Merkaba meditation is based in the ancient Hebrew concept of Merkabah which has some documented history, Drunvalo teaches Merkaba Meditation is a breathing and meditation technique which he tells allows the individual to soul travel to other dimensions and communicate with angels and other beings. .

Drunvalo writes that his life of spirituality began when he learned meditation, and after around four to five months had two angels appear to him, who have been accessible to him by meditation ever since. Since first appearing to him, they have guided him to meet with more than seventy different teachers and mentors around the world, who have shared their knowledge of different areas of spirituality with him.